Electric double layer capacitor and method of manufacturing same
AssigneesSaga Sanyo Industries Co., Ltd., Sanyo Electric Co., Ltd.
InventorSatoru Yoshimitsu
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Abstract
An electric double layer capacitor and a method of manufacturing are provided that are capable of improving high-rate performance and increasing capacity at lower costs. The electric double layer capacitor includes: an electrode unit having a pair of polarizable electrodes, each composed of a carbon material, and a separator interposed between the pair of polarizable electrodes; and an electrolyte solution impregnated in the pair of polarizable electrodes and the separator. The carbon material of at least one of the pair of polarizable electrodes contains fullerene activated by a microwave activation process and/or carbon nanotube activated by a microwave activation process.
Claims17
An electric double layer capacitor comprising:
- an electrode unit having a pair of polarizable electrodes, each composed of a carbon material, and a separator interposed between the pair of polarizable electrodes;
- and an electrolyte solution impregnated in the pair of polarizable electrodes and the separator,
- the carbon material of at least one of the pair of polarizable electrodes containing fullerene activated by a microwave activation process.
A method of manufacturing an electric double layer capacitor, comprising:
- activating fullerene by a microwave activation process;
- preparing an electrode containing a carbon material and a binder, the carbon material composed of the fullerene activated by a microwave activation process;
- providing a pair of polarizable electrodes using the electrode that has been prepared in the step of preparing the electrode as at least one of the pair of polarizable electrodes;
- disposing a separator between the pair of polarizable electrodes;
- and
- impregnating an electrolyte solution into the pair of polarizable electrodes and the separator.
An electric double layer capacitor comprising:
- an electrode unit having a pair of polarizable electrodes, each composed of a carbon material, and a separator interposed between the pair of polarizable electrodes;
- and an electrolyte solution impregnated in the pair of polarizable electrodes and the separator,
- the carbon material of at least one of the pair of polarizable electrodes containing carbon nanotube activated by a microwave activation process.
A method of manufacturing an electric double layer capacitor, comprising:
- activating carbon nanotube by a microwave activation process;
- preparing an electrode containing a carbon material and a binder, the carbon material composed of the carbon nanotube activated by the microwave activation process;
- providing a pair of polarizable electrodes using the electrode that has been prepared in the step of preparing the electrode as at least one of the pair of polarizable electrodes;
- disposing a separator between the pair of polarizable electrodes;
- and
- impregnating an electrolyte solution into the pair of polarizable electrodes and the separator.
An electric double layer capacitor comprising:
- an electrode unit having a pair of polarizable electrodes, each composed of a carbon material, and a separator interposed between the pair of polarizable electrodes;
- and an electrolyte solution impregnated in the pair of polarizable electrodes and the separator,
- the carbon material of at least one of the pair of polarizable electrodes containing fullerene activated by a microwave activation process and carbon nanotube activated by a microwave activation process.
A method of manufacturing an electric double layer capacitor, comprising:
- activating fullerene by a microwave activation process and activating carbon nanotube by a microwave activation process;
- preparing an electrode containing a carbon material and a binder, the carbon material composed of the fullerene activated by the microwave activation process and the carbon nanotube activated by the microwave activation process;
- and
- providing a pair of polarizable electrodes using the electrode that has been prepared in the step of preparing the electrode as at least one of the pair of polarizable electrodes;
- disposing a separator between the pair of polarizable electrodes;
- and
- impregnating an electrolyte solution into the pair of polarizable electrodes and the separator.
Dependencies are inferred from the claim text.